Dr. Jack
Cast ~ CrewCast ~
Harold Lloyd
-Dr. 'Jack' Jackson
Mildred Davis
-The Sick-Little-Well-Girl
John T. Prince
-Charles F. Haskell - Her Father
Eric Mayne
-Dr. Ludwig von Saulsbourg
C. Norman Hammond
-Jamison - the Lawyer
Jackie Condon
-Boy's Pal (uncredited)
Mickey Daniels
-Boy Patient (uncredited)
Richard Daniels
-Man (uncredited)
William Gillespie
-Card Player (uncredited)
Wally Howe
-Asylum Guard (uncredited)
James T. Kelley
-Card-Playing Father (uncredited)
'Auntie' Mackay
-Undetermined Secondary Role (uncredited)
Florence Mayon
-Card Player's Daughter (uncredited)
Oscar Morgan
-Undetermined Secondary Role (uncredited)
Charles Stevenson
-Asylum Guard (uncredited)
Anna Townsend
-Jamison's Mother (uncredited)
Dorothy Vernon
-Restaurant Hostess (uncredited)
Joy Winthrop
-Undetermined Secondary Role (uncredited)
Prod. ~ Crew
Sam Taylor
Directing (Director)
H.M. Walker
Art (Title Designer)
Thomas J. Crizer
Writing (Writer)
Fred C. Newmeyer
Directing (Director)
Sam Taylor
Writing (Story)
Hal Roach
Writing (Story)
Jean C. Havez
Writing (Story)
Hal Roach
Production (Producer)
Walter Lundin
Camera (Director of Photography)
Thomas J. Crizer
Editing (Editor)
Robert A. Golden
Directing (Assistant Director)